1. Don't gamble with an amount that you can't afford to lose.
2. Don't chase your losses because it leads to more losses because tomorrow is another day.
3. Have a gambling budget and time limit for your gambling activities.
4. Gamble for fun and not fod profits because most gamblers end up losing more than they win.
5. Have self control and discipline over your gambling activities.
6. Gambling is a game of luck and not a skill based game or by experience.
This above mentioned things here are the common mistake that a gambler would make which is why is very important for them to know about this above mentioned things here so that they won't have the intention of making money/ becoming rich through gamble because this would make them to engage themselves into ongoing playing of gambling with the hope of becoming rich some day and this can easily lead to addiction, the problem is that even when you give them this advice they will choose to do that which they know is best for them why most of them can adhere to this advice but at some point they start deviating .